How to replace the Heated Oxygen Sensor (HO2S) located pre-catalyst on 2004 Chevrolet Malibu?

To replace the heated Oxygen Sensor (HO2S) pre-catalyst, start with the removal of Exhaust Manifold heat shield. Remove the o2s harness connector & then the o2s (be mindful of not causing any damage to the person attached pigtail & connector that can hinder the working of the sensor). Do not use too much force not to damage the threads in the Exhaust Manifold/pipe and make sure that in-line connector and louvered-end do not contain such an element as grease, dirt, or some other contaminant. The o2s is difficult to remove when the engine temperature is less than 48°c (120°F). For installation, coat the o2s threads with the special anti-seize compound if only after the compound consists of a liquid graphite with glass beads, which makes its unmountable simpler in the future. Replace things into the o2s and tighten it to 30 n.m (22 lb.), and then reconnect the o2s harness and replace the Exhaust Manifold heat shield.

OEM 2004 Chevrolet Malibu Oxygen Sensor

Oxygen O2 Sensor

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4 Oxygen Sensors found

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2004 Chevrolet Malibu Oxygen Sensor Part Number: 12578624
$84.49 MSRP: $171.60
You Save: $87.11 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Rear Oxygen Sensor; Front Oxygen Sensor
- Replaces: 24577303
- Item Weight: 0.50 Pounds
- Item Dimensions: 8.5 x 3.4 x 3.3 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12578624
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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Fits the following 2004 Chevrolet Malibu Submodels:
- Base, Classic LS, LS, LT | 4 Cyl 2.2 L GAS
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2004 Chevrolet Malibu Oxygen Sensor Part Number: 19209808
$72.40 MSRP: $147.04
You Save: $74.64 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Rear Oxygen Sensor
- Replaces: 12575389, 19256731, 25333812, 12583806, 19210711, 12573168
- Item Weight: 0.50 Pounds
- Item Dimensions: 8.4 x 3.4 x 3.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 19209808
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2004 Chevrolet Malibu Submodels:
- LS, LT, LTZ, Maxx, Maxx LS, Maxx LT, Maxx LTZ, Maxx SS, SS | 6 Cyl 3.5 L GAS, 6 Cyl 3.9 L GAS
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2004 Chevrolet Malibu Oxygen Sensor Part Number: 12590790
$57.51 MSRP: $102.72
You Save: $45.21 (45%)
Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Position 1); Front Oxygen Sensor; Sensor, Computer Control Sensors
- Replaces: 12583290
- Item Weight: 0.60 Pounds
- Item Dimensions: 8.5 x 3.1 x 3.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12590790
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2004 Chevrolet Malibu Submodels:
- LS, LT, LTZ, Maxx, Maxx LS, Maxx LT, Maxx LTZ | 6 Cyl 3.5 L GAS
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2004 Chevrolet Malibu Oxygen Sensor Part Number: 12583190
Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Position 1); Sensor, Computer Control Sensors
- Item Weight: 0.50 Pounds
- Item Dimensions: 8.2 x 3.2 x 3.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12583190
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2004 Chevrolet Malibu Submodels:
- Base, LS, LT | 4 Cyl 2.2 L GAS

2004 Chevrolet Malibu Oxygen Sensor

With a comprehensive array of OEM 2004 Chevrolet Malibu Oxygen Sensor, from fuel pumps to door handles, our website is a one-stop-shop for your needs. All our genuine 2004 Chevrolet Malibu Oxygen Sensor are backed by the manufacturer's warranty and are offered at competitive prices in the market. Rest assured, you can shop with complete confidence.

2004 Chevrolet Malibu Oxygen Sensor Parts and Q&A

Q: How to replace the Heated Oxygen Sensor (HO2S) located pre-catalyst on 2004 Chevrolet Malibu?
A: To replace the heated Oxygen Sensor (HO2S) pre-catalyst, start with the removal of Exhaust Manifold heat shield. Remove the o2s harness connector & then the o2s (be mindful of not causing any damage to the person attached pigtail & connector that can hinder the working of the sensor). Do not use too much force not to damage the threads in the Exhaust Manifold/pipe and make sure that in-line connector and louvered-end do not contain such an element as grease, dirt, or some other contaminant. The o2s is difficult to remove when the engine temperature is less than 48°c (120°F). For installation, coat the o2s threads with the special anti-seize compound if only after the compound consists of a liquid graphite with glass beads, which makes its unmountable simpler in the future. Replace things into the o2s and tighten it to 30 n.m (22 lb.), and then reconnect the o2s harness and replace the Exhaust Manifold heat shield.